>>61077933
Every single wealthy industrialised nation has had plummeting fertility rates for the following reasons
>Women's education meaning they defer babymaking
>Increased availability of contraceptives
>Urbanisation - where children are an asset in rural areas, they're quite burdensome in cities

The reason East Asia looks like it has a fertility rate far worse than the west (who is still below replacement) is because they don't have inbred muslims to paper over the cracks.